mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-02 07:04:24 +00:00
ASoC: pxa: fix null-pointer dereference in filter()
[ Upstream commitec7bf231aa
] kasprintf() would return NULL pointer when kmalloc() fail to allocate. Need to check the return pointer before calling strcmp(). Fixes:7a824e214e
("ASoC: mmp: add audio dma support") Signed-off-by: Zeng Heng <zengheng4@huawei.com> Link: https://lore.kernel.org/r/20221114085629.1910435-1-zengheng4@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
83a583a369
commit
21b92cf419
1 changed files with 1 additions and 1 deletions
|
@ -98,7 +98,7 @@ static bool filter(struct dma_chan *chan, void *param)
|
|||
|
||||
devname = kasprintf(GFP_KERNEL, "%s.%d", dma_data->dma_res->name,
|
||||
dma_data->ssp_id);
|
||||
if ((strcmp(dev_name(chan->device->dev), devname) == 0) &&
|
||||
if (devname && (strcmp(dev_name(chan->device->dev), devname) == 0) &&
|
||||
(chan->chan_id == dma_data->dma_res->start)) {
|
||||
found = true;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue